Safety attachment for typesetting machines



Patented .lune 17, 193@ DENIS P. Iv'IoLAUGI-ILIN, GF SAN DIEGO,CALIQRNIA SAFETY ATTACHMENT Fon 'rrrnsiimrinerieoiiinns Application le.Ji'anuary 7, 1929. Serial No. 330,742.

My invention relates to safety attachments for typesetting machines andthe objects of my invention are: First,` to provide a safety attachmentwhich maybe used With any typesetting machine which has incorporatedtherein a quick-change mold ejecting apparatus using` ejector blades;second, to provide a device of this class which prevents the molds,

mold liners, or ejectorblades from being 10 broken -or ruined due to theejector blades being to eject a greater number of ems than the size ofthe mold; third, to provide a safety attachment of this class Which whenthe mold disc is Vrotated the ejector blade opcrating mechanismautomatically shifts so that only the ejector blade necessary to ejectthe smallest mold provided on the mold disc 'will operate, thus unlessthe operating mechanism is reset to the proper size mold, the ejectorblade Would only strike a portion of the slug formed in the mold,breaking the slug, but as the slug can easily be recast and is ofcomparatively soft metal, no damage is done to the machine and it isonly necessary to eject the remaining` portion'of the slug and recastthe line; fourth, to provide a safety attachment of this class whicheliminates the constant expense of liners or molds which are ruined forfurther use every time eighth, to provide a device of this class whichis simple of construction proportional to its functions, durable,efficient in its action and which will not readily deteriorate or getout of'order. p

With these and other objects in view as will appear hereinafter, myinvention consists of` certain novell features of construction, combi:

nation and arrangement of parts and portions they are struck by theejector blade; ifth,`to"

shown by dotted lines.

as will be hereinafterdescribed in detailY and particularly setforth inthe appended claims, reference being had to the accompanying draiviiigsand to the characters of reference thereon `which form al part of thisapplica-55 tion in which Figure l is a fragmentary side elevational Viewof a typesetting machine showing aportion of my safety attachment inconnection therewith with parts andl portions thereof@ iii section tofacilitate the illustration; Fig, 2 is a fragmentary sectional viev7 ofa typesetting machine taken near the ejectorblade setting mechanismshowing my attachment in connection therewith in'elevation'; Fig. 3 Visi 65 an enlarged fragmentary] elevational view of my attachment fromthe-line 3`3 of Fig. 2.; Fi 4 is a sectional vieivfthereof through L -T4oflfig. 2 With parts and portions shoivn'fragi'nentarily to facilitatethe illustration; Fig. 5 -70 Ais a fragmentary sectional'vieiv through5- 5 of Fig. 3 with parts and portions shovvnin elevation to facilitatethe illustration Fig.

. 5 a transverse sectionalv view tlfi'rough 6 6 of Fig. jivith parts andporti-ons shown in 7.5 elevation to facilitate the illustration; Fig. 7

' is another transverse sectional vieiv through T-T of Fig. 5; andFig. 8is Van elevational vieiv of my attachment taken at rightrangles A to theviews shown in Fi l and 2 With parts so and portions in section' andessential, -adiac-eiit portions ofthe typesetting machine Similarcharacters of. reference refer to similar parts and portions throughoutthef-BE several views lof the drawings.

Bracket Liever member 2, set soreWS, cam l, shaft 5,shaft bearings 'a-nd7 4Weight'S, ejector lever 9, upper latch handle l0, lovver latch handle1l, springs 12, arm members 13,@90 link members 14- and 15, and doublelever member 16, constitute the principal parts and portions of mysafety attachment. p i In the conventional structure Without myl safetyattachment, ivhen the ejector' bladel ist`5 set for a Wider Width thanthe mold, the ejector blades strike the liners which limit the Width ofthe mold bending the liners and jamming them in the slots in which theytitan necessitating many times considerable repairczloo in order toagain putthe mold in condition for use. At other times the ends of theeject-or blades are bent so that they must be changed. vVith my devicethe slug is the only thing that is damaged and as this may be readilyrecast, very little trouble is caused by the mistake of the operator.

A bracket 1 is secured to theframe of the typesetting machine below themold disc pinion gear A of said machine. A lever member 2 is pivotallysupport-ed in the bracket l by means of a pin la. The one arm 2a of saidlever extends upwardly and is provided with a set screw 3 whichextendstherethrough in such a manner as to engage the pinion gear A.

When the handle B attached to the pinion gear is pulled out the piniongear causes the lever 2 to pivot about the pin la. The other arm 21which is considerably longer than the arm 2 extends downwardly from thebracket and engages a cam 4 mounted on a shaft 5.

The shaft 5 is supported in bearings 6 and 7, the bearing 6 of which issecured to a low,

horizontally extending portion of the typeset-v ting machine frame C.The shaft5is supported as close as possible to the upper side of theextended portion C so as to clear the under side of the vise closinglever D. shown in dotted outline in Figs. land 8 of the drawings.A'portion of the shaft 5 extends outwardly vfrom the machine and aweight 8 is mounted thereon which tends to force the cam4 away from thelever 2. The shaft 5 passes under the vise .closing levers and lunderthe vise spring E,- shown by dotted outline in Fig. 8. An offset portion5ais provided in the shaft 5 in order to clear said spring. The shaft 5passes under or over other mechanism, not shown, formingr a part of thevise mechanism of the machine to the second shaft bearing 7, to bedescribed later.

A second arm Fsimilar to the arm C, extends outwardlyfrom the machine onthe opposite side of the vise mechanism from the arm C. Another frameportion G of the typesetting' machine extends transversely to the arm Fa short distance back of the axis of the rod 5, as shown in Figs. 2 and4 of the drawings. Y f

Secured to this portion G of the frame is an ej ector lever rod bracketH which extends upwardly and backwardly from the frame portion Gterminating in a bearing for supporting the ejector rod lever 9. Thislever 9 is similar to the conventional ejector lever except for itsextended end which is changed in shape slightly so as to facilitate itsuse in connection Ywith my safety device. Y 4Pivotally mounted upon apin 9a which is supported byand extends transversely to the lever 9, bymeans of downwardly extending ear portions 10L which straddle theejector lever 9 is an upper latch handle l0. The ejector lever 9 isenlarged around the pin 9a as shown best in Fig. 5 in order to form asuitable support therefor.

T he latch handle l0 extends past and above the end of the ejector lever9. A spring l2 extends between the end of the ejector lever 9 and theunder side of the latch handle 10 and tends to force said latch handleaway from said ejector lever.

A catch member l0" is mounted at the one side of said upper latch handle10. This catch member 10" is adapted to engage teeth of a rack member Jwhich forms a part of the typesetting machine.

This rack member J on the conventional machine is adapted to hold theejector lever by means of a latch handle similar to the handle l() in apredetermined position, the notches therein corresponding to the variousejector blades. llVhen the conventional ejector lever Vis at the'highestpoint of the rack Jc the fewest number of ejector blades are permittedto function. As the lever 9 is lowered relative to the rack, moreejector blades are brought into action.

Pivotally mounted on the same pin 9a bymeans of ear portions l1a is asecond or lower latch handle. rl'he ears 11n extend over the ears l()a of the upper latch handle. Secured to the side of one of the earport-ions 11*1 is a catch member lll which is adapted to engage teeth onthe rack J in a manner similar to the upper latch l0". The extended endof the lower latch member projects past the end of the ejector lever 9and is similar in size and shape to the upper latch handle l0. A spring-12, as in the manner before described, tends to force the low-er latchhandle ll away from the ejector lever.

Thus in order to change the position of the lever, it is necessary tomove both latch hanf dles towards the lever and disengage both catchmembers l()b and 11".

Secured to the one side of the upper latch handle 10, preferably on theopposite side from the latch lever 10b, is an arm member 13.l This arm13 extends towards the pivot point of the lever 9. Connected with theend of the arm 13 is a link member 14.

' One of the ear portions 1l of the lower latch handle ll is providedwith an extendedv portion l1 to which is rpivotally attached by its oneend a link member 15. v

A double lever member 1G is secured to the shaft 5 between two portionsof a bearing 7, which is secured to or made integral with the ejectorlever rod bracket H.

The double lever member 16 is provided with two arms 16? and 1Gb. Thearm 16 is relatively short and is connected to the link member 14 whichis secured to the arm I connected to the lower latch handle ll.

l-"rs the point at which the link member ll connects with the arm 13 isrelatively near the pivotal point of the ejector member' 9 of the arm16n which connects with the` link member 14: it may be relativelyVshort. 'llfhercas the point at which the link member 15 connects withthe lower latch handle 11 is relatively far spaced from the pivotalpoint of the ejector' lever 9, the a m 1Gb is made, of course,correspondingly long.

The pivotal movement of the double inemberlG, as indicated by the arrowin Fig. 2 causes the link member 1.4i to rotate the upper latch memberabout the pin 9, disengaging the catch member 1()b from the rack J. This same movement of the lever 16 pushes upwardly on the link member 15and rotates the loiver latch handle so that its catch member disengagesthe rack.` Continued movement of the lever 16 shifts the ejector'leverto its upper position on the rack J, the position at which the minimumnumber of ejector' blades Will function.

In order to regulate the movement of the double lever 16 a setscreiv'16c is provided which is screvvably mounted in a lug 16d,formingl a part of the lever 16. The set screw engages the ejector leverrod bracket when the lever 16 is shifted to its upper position.

The Weight 8 tends to lift the double lever 16 as soon as the latchmembers are released from the rack J, and also lessens therebound of theapparatus.

rlihe operation of my safety attachment is as follows: To chang; themold disc from one size mold to another, it is necessary to disengagethe pinion A from a pin member which rigidly connects said pinion gearto a shaft. ln doing so the lever 2 is caused to rotate about its axisWhich in turn causes the rotation of the shaft 5. rllhis movement causesthe latches 10" and 11b to disengage the latch and permit the lever torise to its upper position. Thus, for example, When the mold has beenpreviously set to form a twelve em slug and is then set for an eight emslug, the ejector lever automatically moves to the position forejectinga four em slug, or the smallest slug for which the device is setto eject. lNhen the ejector blades only four ems in Width strike theslug, the slug` breaks and only7 four ems thereof are ejected. lllheslugY beingl made of relatively soft material breaks Without damagingthe ejector lade. All the operator is required to do after the slug; isbroken is to reverse the machine slightly, set the ejector blade to theproper Width and eject the portion of the slug remaining in the mold,then recast the slug.

Though I have shown and described a particular construction, combinationand ararrangement of parts and portions, l do not Wish to be limited tothis particular construction, combination and arrangement but desire toinclude in the scope of my invention the construction, combination andarrangement 1. ln a safety attachment of the class described', thecombination with a type setting machine havin g a mold disc drive pinionand ejector blades operated by an ejector lever, of

a rod and lever means operated by said mold#v disc pinion and engageablevvith said ejector lever for shifting said ejector lever so as to permitthe operation of only a predetermined minimum number of ejector blades.

2. ln a safety attachment `ofthe class described, the combination With atypesetting machine having a mold `disc drive pinion and ejector bladesoperated by an ejector lever, of a lever means operated by said piniongear, a rotatable shaft operated by said lever means, said shaftextending to a point in operative relation to said ejector lever, andlink means connecting said ejector lever with said shaft for shiftingsaid ejector lever to a predetermined position vvhen said shaft isactuated by lsaid lever means.

3. ln a safety attachment of the class described, the combination With atypesetting machine having a shiftable mold disc pinion and ejectorblades, an ejector lever for placing said blades in operative position,and a latch and rack means for holding,` said lever in various shiftedpositions, of a rod and lever means operated by said pinion gear andengageable with said latch means for disen- @aging saidlatch means fromsaid rack means and shifting` `said latch and ejector lever to apredetermined position. l

Il. In a safety attachment of the class described, the combination Withatypesettingmachine having a shiftable mold disc pinion and ejectorblades, an ejector lever for placing saidblades in operative position,and a latch and rack means for holding said lever in variousshiftedpositions, of a lever .means operated by said pinion gear, ashaft operated by said lever means, said Vshaft extending to a point inoperative relation to -said latch means, and link means connectingsaitlshaft with said latch means for disengaging said latch means from saidrack and shifting said latch means and said ejector lever to aV piniongear and engageable with each of said latch means for disengaging saidlatch means from said rack and shifting said ejector lever to aypredetermined position.

6. In a safety attachment of the class described, the combination with atypesetting machine having a shiftable mold disc pinion,

ejector blades, an ejector lever for permitting` the operation of anynumber of said ejector -blades and a rod means co-operating with saidejector lever, of a latch means mounted on opposite sides of saidejector lever near the extended end thereof, each of said latch meansengageable with said rack means for holding said ejector lever invarious shifted positions, a lever ,means operated by said pinion gear,a shaft operated by said lever means, said shaft extending to anoperative position relative to said latch means, link members connectingsaid rod with said latch means for permitting` the movement of said rodto disengage said latch means from said rack and shift said lever to apredetermined position.

7. In a safety attachment of the class described, the combination with atypesetting machine having a shiftable mold disc pinion, ejector blades,an ejector lever for permitting the operation of any number of saidejector blades and a rod means cooperating with said ejector lever, of alatch means mounted on the under side of said ejector lever at theextended end thereof, said latch means engealiile with said rack forholding said levei` in various shifted positions, a rod and lever vleansoperated. by said pinion gear and engageable with said latch means fordisengagin g said latch means from said rack and shifting said ejectorlever to a predetermined position.

S. In a safety attachment of the class described, the combination With atypesetting machine having a shiftable mold disc pinion, ejector blades,an ejector lever for permitting the operation of any number of saidejector' blades and a rodmeans co-operating with said ejector lever, ofa latch means mounted on the under side of said ejector lever at theextended end thereof, said latch mea ns engageable with said rack forholding said lever in various positions, a lever means operated by saidpinion gear, a shaft operated by said lever means, said shaft extendingto a position in operative relation to said latch means, an Aarmextending Yfrom said shaft, a link member connecting said arm with saidlatch means for disengaging said latch means from said rack and shiftingsaid latch and ejector lever to a predetermined position.

In testimony whereof, I have hereunto set my hand at San Diego,California, this 21st day of December, 1928.

DENIS r. Mensuel-itin. i

